Downgrade the Handsets
You can downgrade the base stations running Firmware version 5.0(1) only to the latest branch of Firmware
version 4.8(1) SR1.
Note
The firmware filename contains the version (v) and branch number (b). For example,
6825-210_v0480_b0001.fwu is version 480 and branch 1. When you put the firmware version and branch
number into the
Firmware Update
page, you don't need the leading zeros.
The 6825 Handset, 6825 Ruggedized Handset, and 6823 Handset have their own firmware file.
After you start the downgrade from the web page, all handsets download and load the new firmware file. The
downgrade may take 20-30 minutes to download and verify, and an extra few minutes to load the new firmware
file on the handset. The handset must be placed in the charger and not removed until the handset loads the
firmware file and reboots. While the handset loads the new firmware, the LED flashes in the order green, red,
green, and amber. The handsets automatically reboot at the end of the downgrade.
The
Extensions
page shows the downgrade progress in the
FWU Progress
column.
• During the download, the column shows the download progress as a percentage. For example,
41%
.
• After the file is downloaded, it’s verified and the column shows the verification progress as a percentage.
For example,
Verifying 23%
.
• If the verification is complete and the handset isn’t on the charger, the column shows
Waiting for
charger
.
• If the verification is complete and the handset is placed in the charger, the column shows
Waiting
for charger
before it shows
Restarting
.
• When the downgrade is complete, the column shows
Complete
.
If the
FWU Progress
shows
Off
, the version and branch in the Firmware Update page are set to 0.
We recommend that you download the base station first, then download the handsets after the base station
update completes.
Note
Before you begin
Connect to the base station web page as described in
Sign in to the Administration Web Page, on page 42
You need to have completed
Set Up the Firmware Update Parameters, on page 153
and
the Firmware Files to the TFTP, HTTP, or HTTPS Server, on page 153
.
Procedure
Step 1
Click
Firmware Update
.
Step 2
Enter the new firmware version in the
Required version
field for all the handsets.
Step 3
Enter the branch number in the
Required branch
field for all the handsets.
Cisco IP DECT 6800 Series Administration Guide
159
Maintenance
Downgrade the Handsets
Содержание 6823
Страница 48: ...Cisco IP DECT 6800 Series Administration Guide 40 Hardware Installation Charge the Handset Battery ...
Страница 170: ...Cisco IP DECT 6800 Series Administration Guide 162 Maintenance Base Station States ...
Страница 184: ...Cisco IP DECT 6800 Series Administration Guide 176 Troubleshooting Generate PCAP Logs ...
Страница 194: ...Cisco IP DECT 6800 Series Administration Guide 186 Worksheets Handset Configuration Parameters Worksheet ...